This article describes construction of the characterized source model for strong motion prediction of scenario earthquakes. Based on the heterogeneous slip models obtained from strong motion data, an empirical relationship between seismic moment and asperity area size are observed. The asperity area coincides to the strong motion generation area that generates broad-band ground motions. Following these observations, the characterized source model is constructed based on the asperity model. The `recipes` are also reviewed for strong motion prediction.